Black market British passports are being sold openly on social media. Genuine and fake versions can be bought for as little as £800, a Daily Mail investigation shows. One page on Facebook has been used to trade illegal British passports for at least three years. We also found that passports cloned with details taken from real passports were being touted for a few hundred pounds on other easily-accessible websites. The revelations follow yesterday’s Mail investigation into how stolen British passports are spirited to Turkey to be sold by people smugglers. David Ibsen, a security expert who advised the US government, said it was no surprise Facebook was being used to hawk passports that could fall into the hands of terrorists. ‘It is well known that extremists use Facebook as a tool to achieve their goals,’ he said. ‘The Mail is to be congratulated for exposing something that poses a genuine danger. ‘We continue to see Facebook failing to address its platform’s role in encouraging and proliferating terrorism.’ Mr Ibsen, who is executive director of the Counter Extremism Project, said it was a clear security threat to the UK and other European countries for stolen passports to be offered in an environment where terrorists want to move around undetected.